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Old 10-14-2012, 02:35 AM   #2
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I use oyster shell calcium tablets. My shrimp and snails SWARM it every time I put it in the tank (once a week). It keeps it's form and doesn't cloud the water. I'd be more prone to doing something like that than a powder but I've never used what you've linked so I'm just thinking outloud about it, no personal experience.
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